2016-09-29 22:54 GMT+02:00 Jakub Wilk <jw...@debian.org>: > * Jakub Wilk <jw...@debian.org>, 2016-09-07, 23:49: > >> you can completely disable external network with socket_wrapper >> > > ... which is a pretty heavy-weight solution, and in fact it breaks > asyncssh's tests. > > Luckily, glibc has a way to disable DNS queries without LD_PRELOAD > trickery: > > $ RES_OPTIONS=attempts:0 wget http://www.example.com/ > --2016-09-29 22:49:22-- http://www.example.com/ > > Resolving www.example.com (www.example.com)... failed: Temporary failure > in name resolution. > wget: unable to resolve host address ‘www.example.com’ > > This is wonderful, thank you !
Jérémy
